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E. ictaluri colonization ratio in intestinal loop histology 6 h postinoculation with a 107-CFU dose of bacteria. (A) Fluid colonization. S. Tym, Salmonella enterica serovar Typhimurium. (B) Tissue colonization. *, significant difference versus wild type (P < 0.05). Each symbol represents an independent experiment. A total of 9 animals were used. The error bars indicate the standard deviation.
